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The author of this book is director of the roentgenographic department of a hospital in Königsberg, and the book has been written with the assistance of the members of the staff of the ophthalmic clinic of the University of Königsberg.
Many tumors of the pituitary gland are slow in developing, and by the time the endocrine and vegetative disturbances become manifest the anatomic changes are so marked that treatment is unsatisfactory. An earlier diagnosis can be made by studying the disturbances of the optic nerves, with the exact localization of the retinal functions, and the bony changes in the sellar region. The pressure symptoms show the direction of growth and so suggest the site of origin. Examination of the visual fields is of the greatest importance and must be most carefully performed. Tumor of the hypophysis is no longer a sufficient diagnosis, but an exact diagnosis should be
Knapp A. Gegenseitige Auswertung der Augen-und Röentgensymptome bei der Tumordiagnostik im Sellabereich. Arch Ophthalmol. 1938;19(4):651–652. doi:10.1001/archopht.1938.00850160177015
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